user manual for cbi discontinued dec 06

8/3/2019 User Manual for Cbi Discontinued Dec 06

http://slidepdf.com/reader/full/user-manual-for-cbi-discontinued-dec-06 1/4

9 / 1 4 , 1 4 / 1 9 & 1 9 / 2 4 C B i

U S E R I N S T R U C T I O N S &

C U S T O M E R C A R E G U I D E

134

Central Heating When a demand is made for heating by the system controls

(i.e. a programmer or room thermostat). A pump will energisecirculating primary water around the heating system and the burner,after a few seconds, will light. The heat output from the appliance inthis mode has been factory set to give maximum output or as reset byyour installer. The appliance will operate as necessary to maintain thetemperature of the radiators at the level set by the adjustment of the

boiler Temperature Control Knob. (See Fig. 1.)If the system no longer requires output to maintain the desired

room temperature, the burner will extinguish. The pump and fan willcontinue to run for a short period to dissipate the residual heat fromthe appliance and then switch off.

The appliance will supply heat to the central heating system asrequired.

Hot Water The appliance operates to supply only domestic hot water when

the heating temperature mode is fully anti-clockwise, at the 0 positionor the timer is programmed to OFF mode.

I M P O R T A N T : T H I S A P P L I A N C E I S F O R U S E W I T H N A T U R A L G A S A N D L P G T H E S E I N S T R U C T I O N S A P P L Y I N T H E U K O N L Y .

T H E S E I N S T R U C T I O N S A R E T O B E L E F T W I T H T H E U S E R O R A T T H E G A S M E T E R

G U A R A N T E E R E G I S T R A T I O N

Y o u s h o u l d c o m p l e t e a n d r e t u r n t h e p o s t p a i d G u a r a n t e e R e g i s t r a t i o n C a r d w i t h i n 3 0 d a y s o f p u r c h a s e .

T h e c a r d w i l l r e g i s t e r y o u a s t h e o w n e r o f y o u r n e w W o r c e s t e r b o i l e r a n d , w h i l e t h i s w i l l n o t a f f e c t y o u r s t a t u t o r y r i g h t s i n a n y w a y , i t w i l l a s s i s t u s t o m a i n t a i n a n e f f e c t i v e a n d e f f i c i e n t c u s t o m e r s e r v i c e b y e s t a b l i s h i n g a r e f e r e n c e a n d p e r m a n e n t r e c o r d f o r y o u r b o i l e r .

I M P O R T A N T : S E R I A L N U M B E R . C o p y t h e n u m b e r o f f t h e G u a r a n t e e C a r d .

F O R Y O U R O W N R E C O R D M O D E L S E R I A L N U M B E R

( S e e i d e n t i t y l a b e l i n s i d e a p p l i a n c e c a s i n g )

T Y P E / S I Z E D A T E O F I N S T A L L A T I O N

MAINTAINING YOUR APPLIANCE

Your new Worcester boiler represents a long-terminvestment in a reliable, high quality product.

In order to realise its maximum working life, and to ensureit continues to operate at peak efficiency and performance, it isessential that your boiler receives regular, competent servicing and annual maintenance checks beyond the initial 12 monthguarantee period.

Regular service contracts can be arranged with your installer– however if you have difficulty making a satisfactory

arrangement simply contact Worcester on 08457 256206 forhelp.

If you would like to know more about Worcester’s extended warranty options please tick the appropriate box on your warranty registration card.

G . C . N U M B E R S

A P P L I A N C E N A T U R A L G A S L P G

9 / 1 4 C B i 4 1 3 1 1 5 0 4 1 3 1 1 5 1

1 4 / 1 9 C B i 4 1 3 1 1 5 2 4 1 3 1 1 5 3

1 9 / 2 4 C B i 4 1 3 1 1 5 4 4 1 3 1 1 5 5

8 7 1 6 1 0 3 1 9 1 b 1 0 / 0 5

W o r c e s t e r , B o s c h G r o u p , C o t s w o l d W a y , W a r n d o n , W o r c e s t e r W R 4 9 S W . T e l e p h o n e : 0 1 9 0 5 7 5 4 6 2 4 F a x : 0 1 9 0 5 7 5 3 1 3 0 .

T e c h n i c a l H e l p l i n e 0 8 7 0 5 2 6 6 2 4 1 . W o r c e s t e r , B o s c h G r o u p i s a t r a d i n g n a m e o f B B T T h e r m o t e c h n o l o g y U K L i m i t e d

w w w . w o r c e s t e r - b o s c h . c o . u k

W o r c e s t e r s u p p o r t s t h e B e n c h m a r k c o d e o f p r a c t i c e

V o t e f o r y o u r

‘ I n s t a l l e r o f t h e y e a r ’ a t

w w w . w o r c e s t e r - b o s c h . c o . u k

C O R G I C O N T A C T

A l l C O R G I R e g i s t e r e d i n s t a l l e r s c a r r y a C O R G I I D c a r d a n d

h a v e a r e g i s t r a t i o n n u m b e r . B o t h s h o u l d b e r e c o r d e d i n y o u r c e n t r a l h e a t i n g l o g b o o k . Y o u c a n c h e c k y o u r i n s t a l l e r i s

C O R G I R e g i s t e r e d b y c a l l i n g C O R G I o n 0 1 2 5 6 3 7 2 3 0 0



CONTACT NUMBERS:

UK Contact Centre Tel. 08457 256 206UK Contact Centre Fax. 01905 757536Scotland only Fax. 01506 441 687Eire Tel: 01 494 0099

OPERATING HOURS:

Mon - Fri 7.00am to 8.00pmSat 8.00am to 5.00pmSun 9.00am to 12.00pm

Please contact our UK Contact Centre number where our friendlyoperators will book your call with one of our team of nationwideengineers.

NOTE:Please refer to our website for our bank holiday opening hours.

www.worcester-bosch.co.uk

T h a n k y o u f o r p u r c h a s i n g a W o r c e s t e r C B i b o i l e r .

T h e C B i S e r i e s a p p l i a n c e s a r e m a d e b y W o r c e s t e r a n d t h e s t r i c t e s t q u a l i t y c o n t r o l s t a n d a r d s a r e d e m a n d e d t h r o u g h o u t e v e r y s t a g e o f p r o d u c t i o n .

I n d e e d , W o r c e s t e r , p a r t o f t h e B o s c h G r o u p h a v e l e d t h e f i e l d i n i n n o v a t i v e a p p l i a n c e d e s i g n a n d p e r f o r m a n c e f o r m o r e

t h a n 4 0 y e a r s .

T h e r e s u l t i s t h a t y o u r n e w W o r c e s t e r b o i l e r a p p l i a n c e o f f e r s y o u t h e v e r y b e s t o f e v e r y t h i n g - q u a l i t y , e f f i c i e n c y , e c o n o m i c a l r u n n i n g c o s t s , p r o v e n r e l i a b i l i t y a n d v a l u e f o r m o n e y .

W h a t ’ s m o r e , y o u a l s o h a v e t h e a s s u r a n c e o f o u r n o - n o n s e n s e 1 y e a r p a r t s a n d l a b o u r g u a r a n t e e .

1 5

E X C E L L E N C E C O M E S A S S T A N D A R D

P a g e N o .

O p e r a t i n g I n s t r u c t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1 1

F a u l t a n d B r e a k d o w n s 1 2

M a i n t e n a n c e a n d E x t e n d e d W a r r a n t y I n f o r m a t i o n . . . . . . . . . . . . 1 3 - 1 4

G u a r a n t e e D e t a i l s . . . 1 5 - 1 6

C O N T E N T S

2

14

Y O U R W O R C E S T E R B O I L E R G U A R A N T E E

T h i s a p p l i a n c e i s g u a r a n t e e d f r o m t h e d a t e o f i n s t a l l a t i o n s u b j e c t t o t h e f o l l o w i n g c o n d i t i o n s & e x c e p t i o n s .

1 . T h e a p p l i a n c e i s g u a r a n t e e d f o r a p e r i o d o f 2 4 c a l e n d a r m o n t h s

s u b j e c t t o t h e r e t u r n o f t h e g u a r a n t e e c a r d w i t h i n 3 0 d a y s o f

i n s t a l l a t i o n a n d t h e f i r s t 1 2 m o n t h s s e r v i c e a n d i n s p e c t i o n h a v i n g b e e n

c a r r i e d o u t t o t h e s a t i s f a c t i o n o f B B T

T h e r m o t e c h n o l o g y U K L t d . P l e a s e n o t e t h a t t h i s s e r v i c e i s n o t c o v e r e d

u n d e r t h e t e r m s & c o n d i t i o n s o f t h e w a r r a n t y a n d w o u l d t h e r e f o r e i n c u r

a c h a r g e .

2 . T h a t d u r i n g t h e p e r i o d o f t h i s

g u a r a n t e e a n y c o m p o n e n t s o f t h e u n i t w h i c h a r e P r o v e d t o b e f a u l t y

o r d e f e c t i v e i n m a n u f a c t u r e w i l l b e

e x c h a n g e d o r r e p a i r e d F r e e o f m a t e r i a l c h a r g e s a n d f r e e o f l a b o u r

c h a r g e s i f r e p a i r e d d i r e c t l y b y B B T T h e r m o t e c h n o l o g y U K L t d . I n v o i c e s

f o r a t t e n d a n c e a n d r e p a i r o f t h i s a p p l i a n c e b y t h i r d p a r t i e s w i l l n o t

b e a c c e p t e d f o r p a y m e n t b y B B T .

3 . T h a t t h e h o u s e h o l d e r m a y b e a s k e d

t o p r o v e t h e d a t e o f i n s t a l l a t i o n a n d

t h a t t h e a p p l i a n c e w a s c o r r e c t l y c o m m i s s i o n e d . T h i s i n f o r m a t i o n

m u s t t h e n b e d o c u m e n t e d i n t h e B e n c h m a r k G a s B o i l e r

C o m m i s s i o n i n g C h e c k l i s t .

4 . T h a t a n y p r o d u c t o r p a r t t h e r e o f

r e t u r n e d f o r s e r v i c i n g u n d e r t h e g u a r a n t e e m u s t b e a c c o m p a n i e d b y

a c l a i m s t a t i n g t h e m o d e l , s e r i a l n u m b e r a n d d a t e o f i n s t a l l a t i o n .

5 . T h a t B B T T h e r m o t e c h n o l o g y U K L t d

w i l l n o t a c c e p t r e s p o n s i b i l i t y f o r d a m a g e c a u s e d b y f a u l t y

i n s t a l l a t i o n , n e g l e c t , m i s u s e ,

a c c i d e n t a l d a m a g e o r t h e n o n - o b s e r v a n c e o f t h e i n s t r u c t i o n s

c o n t a i n e d i n t h e I n s t a l l a t i o n a n d U s e r s i n s t r u c t i o n s l e a f l e t s .

6 . T h a t t h e a p p l i a n c e h a s b e e n u s e d

o n l y f o r n o r m a l d o m e s t i c p u r p o s e s , f o r w h i c h i t w a s d e s i g n e d .

7 . T h a t t h i s g u a r a n t e e a p p l i e s o n l y t o

e q u i p m e n t p u r c h a s e d a n d u s e d i n

m a i n l a n d G r e a t B r i t a i n .

T h i s g u a r a n t e e i s g i v e n i n a d d i t i o n t o a l l y o u r n o r m a l s t a t u t o r y r i g h t s .

W o r c e s t e r , B o s c h G r o u p i s a t r a d i n g n a m e o f B B T T h e r m o t e c h n o l o g y U K L t d .

GENERALINFORMATION

GAS SAFETY (INSTALLATION AND USE)REGULATIONS 1998

It is the law, in GB, that all gas appliances must be installed by acompetent person in accordance with the above regulations. Failure toinstall appliances correctly could lead to prosecution. It is in yourinterest and that of safety to ensure compliance with the law. Themanufacturer’s notes must not be taken, in any way, as over-riding statutory obligations.

In GB, a competent person is someone registered with CORGI. AllCORGI registered installers carry a CORGI ID card and have aregistration number. Both should be recorded in the BENCHMARK checklist. You can check that your installer is CORGI registered bycalling CORGI on 01256 372300.

WARNING: This appliance must be earthed and protected by a 5amp fuse.ELECTRICITY SUPPLY: 230V ~ 50HzIMPORTANT: To get the best from your Worcester boiler please

read these instructions carefully.In the event of a fault the appliance should not be used until the

fault has been corrected by a competent person.

BENCHMARK The Benchmark initiative is a code of practice to encourage the

correct installation, commissioning and servicing of domestic central

heating boilers and system equipment. A checklist can be found in the back of every installation

manual. This is a vital document that needs to be completed by theinstaller at the time of installation. It confirms that the boiler hasbeen installed and commissioned according to the manufacturersinstructions.

In Eire the declaration found in IS 813 must be completed. Without completion of the checklist and/or declaration,manufacturers may refuse to respond to a call-out request. It isimportant that the checklist and/or declaration are fully completed byyour installer.

GENERAL DESCRIPTIONThe Worcester boilers provide a heat output of between 9-14kW(9/14CBi), 14-19kW (14/19CBi) & 19-24kW (19/24 CBi) and contain atemperature control and all the appropriate safety controls. They aresuitable for fully pumped open vent or sealed systems.

They can be connected to a domestic hot water supply systemthrough an external S or Y plan system.

3

SERVICE CENTRES



1 2 5

Y o u r i n s t a l l e r w i l l a d v i s e y o u o f a n y a c t i o n s y o u s h o u l d t a k e t o e n s u r e t h a t t h e s a t i s f a c t o r y a n d e f f i c i e n t o p e r a t i o n o f t h e h e a t i n g a n d h o t w a t e r s y s t e m s c o n n e c t e d t o t h e b o i l e r a r e m a i n t a i n e d .

C E N T R A L H E A T I N G S Y S T E M D u r i n g t h e f i r s t f e w h o u r s o f o p e r a t i o n o f t h e c e n t r a l h e a t i n g

s y s t e m , c h e c k t h a t a l l r a d i a t o r s a r e b e i n g h e a t e d a t a n e v e n r a t e . S h o u l d t h e u p p e r a r e a o f a r a d i a t o r b e a t a l o w e r t e m p e r a t u r e t h a n t h e b a s e o f t h e r a d i a t o r , i t s h o u l d b e v e n t e d b y r e l e a s i n g a i r t h r o u g h t h e v e n t i n g s c r e w a t t h e t o p o f e a c h r a d i a t o r . M a k e s u r e y o u r i n s t a l l e r

s h o w s y o u h o w t o c a r r y o u t t h e o p e r a t i o n . O n a s e a l e d s y s t e m r e p e a t e d v e n t i n g w i l l r e d u c e t h e q u a n t i t y o f w a t e r i n t h e s y s t e m a n d t h i s m u s t b e r e p l e n i s h e d f o r s a f e a n d s a t i s f a c t o r y o p e r a t i o n o f t h e a p p l i a n c e . S h o u l d w a t e r l e a k s b e f o u n d i n t h e s y s t e m o r e x c e s s i v e v e n t i n g b e r e q u i r e d f r o m a n y r a d i a t o r , a s e r v i c e e n g i n e e r s h o u l d b e c o n t a c t e d a n d t h e s y s t e m c o r r e c t e d .

C L E A R A N C E S C o m p a r t m e n t W i t h V e n t i l a t i o n

Y o u r i n s t a l l e r w i l l h a v e p r o v i d e d a d e q u a t e s p a c e a r o u n d t h e a p p l i a n c e f o r s a f e t y a n d s e r v i c i n g . T h i s s p a c e m u s t n o t b e r e s t r i c t e d b y t h e a d d i t i o n o f c u p b o a r d s h e l v e s e t c . c l o s e r t o t h e a p p l i a n c e . T h e f o l l o w i n g m i n i m u m c l e a r a n c e s a r e r e q u i r e d .

C o m p a r t m e n t W i t h N o V e n t i l a t i o n Y o u r i n s t a l l e r w i l l h a v e p r o v i d e d a d e q u a t e s p a c e a r o u n d t h e

a p p l i a n c e f o r s a f e t y a n d s e r v i c i n g . T h i s s p a c e m u s t n o t b e r e s t r i c t e d b y t h e a d d i t i o n o f c u p b o a r d s h e l v e s e t c . c l o s e r t o t h e a p p l i a n c e . F l a m m a b l e o b j e c t s m u s t n o t b e s t o r e d i n t h i s t y p e o f c o m p a r t m e n t . T h e f o l l o w i n g m i n i m u m c l e a r a n c e s a r e r e q u i r e d .

* T h e c l e a r a n c e a t t h e f r o n t i s t o b e a r e m o v a b l e p a n e l e . g . a d o o r . A c l e a r a n c e o f 6 0 0 m m

s h o u l d b e a l l o w e d w i t h t h e d o o r o p e n .

G E N E R A L N O T E S

98

OPERATION OFCONTROLS

M o r e t h a n 3 0 % o f a l l c a l l s m a d e t o o u r c o n t a c t c e n t r e r e p o r t i n g a p p l i a n c e f a u l t s o r b r e a k d o w n s p r o v e t o b e f a l s e a l a r m s , a s t h e r e i s o f t e n a s i m p l e e x p l a n a t i o n f o r t h e a p p a r e n t m a l f u n c t i o n .

S o , t o h e l p y o u s a v e t i m e a n d m o n e y – n o t t o m e n t i o n f r u s t r a t i o n a n d i n c o n v e n i e n c e – p l e a s e r e f e r t o t h e G e n e r a l I n f o r m a t i o n , N o t e s a n d L i g h t i n g I n s t r u c t i o n s e n s u r i n g a l l c o n t r o l s a r e s e t c o r r e c t l y .

I f , a f t e r f o l l o w i n g t h e i n s t r u c t i o n s t h e a p p l i a n c e s t i l l f a i l s t o o p e r a t e c o r r e c t l y c a l l t h e W o r c e s t e r C o n t a c t C e n t r e . A r r a n g e m e n t s w i l l b e m a d e

f o r a n e n g i n e e r t o c a l l a s s o o n a s p o s s i b l e .

N O T E : N o s e a l e d c o m p o n e n t s s h o u l d b e a d j u s t e d . F a i l u r e t o c o m p l y w i t h t h i s w i l l i n v a l i d a t e a n y w a r r a n t y a n d w i l l b e h a z a r d o u s t o t h e u s e r .

C A L L - O U T C H A R G E S A l l o f o u r f i e l d s e r v i c e e n g i n e e r s a r e f a c t o r y t r a i n e d .

I f y o u r e q u e s t a v i s i t f r o m a n e n g i n e e r a n d y o u r a p p l i a n c e h a s b e e n i n s t a l l e d w i t h i n t h e l a s t 1 2 m o n t h s , n o c h a r g e w i l l b e m a d e f o r p a r t s a n d / o r l a b o u r , p r o v i d i n g :

• T h e a p p l i a n c e w a s c o m m i s s i o n e d c o r r e c t l y o n i n s t a l l a t i o n .

• A n a p p l i a n c e f a u l t i s f o u n d a n d t h e a p p l i a n c e h a s b e e n i n s t a l l e d w i t h i n t h e p a s t 1 2 m o n t h s .

A c a l l - o u t c h a r g e w i l l b e m a d e w h e r e :

• T h e a p p l i a n c e h a s b e e n i n s t a l l e d f o r o v e r 1 2 m o n t h s , o r

• O u r F i e l d S e r v i c e E n g i n e e r f i n d s n o f a u l t w i t h t h e a p p l i a n c e ( s e e n o t e ) , o r

• T h e c a u s e o f b r e a k d o w n i s w i t h o t h e r p a r t s o f y o u r p l u m b i n g / h e a t i n g s y s t e m , o r w i t h e q u i p m e n t n o t s u p p l i e d b y W o r c e s t e r .

N O T E : I n v o i c e s f o r a t t e n d a n c e a n d / o r r e p a i r w o r k c a r r i e d o u t o n

y o u r a p p l i a n c e b y a n y t h i r d p a r t y w i l l n o t b e a c c e p t e d .

A P P L I A N C E F A I L S T O O P E R A T E

Fig. 1. Controls.BOILER HEATING TEMPERATURECONTROL

The position of this control will determine the temperature of the water delivered from the appliance between the start of the dial asindicated thus ' ' and the fully on position i.e. when the control isturned fully clockwise. When the knob is turned fully anti-clockwiseto the ‘O’ position the appliance is off.

BOILER RESET BUTTONIf the lockout light is on or flashing, turn the temperature control

fully anticlockwise to the 'O' position and back on again. If theappliance still fails to operate then contact Worcester Bosch or yourinstaller.

Boilerdemand

Temperaturecontrol

9 / 1 4 C B i 1 4 / 1 9 C B i 1 9 / 2 4 C B i

L e f t - h a n d s i d e 5 5 5

R i g h t - h a n d s i d e 5 5 5

I n F r o n t 6 0 0 6 0 0 6 0 0

A b o v e ( R e a r O n l y F l u e ) 3 0 3 0 3 0

A b o v e ( F l u e T u r r e t ) 1 8 0 1 8 0 1 8 0

B e l o w 2 0 0 2 0 0 2 0 0

9 / 1 4 C B i 1 4 / 1 9 C B i 1 9 / 2 4 C B i

L e f t - h a n d s i d e 1 0 5 1 0 5 1 0 5

R i g h t - h a n d s i d e 1 0 5 1 0 5 1 0 5

I n F r o n t * 3 4 0 3 4 0 3 4 0

A b o v e ( R e a r O n l y F l u e ) 3 0 3 0 3 0

A b o v e ( F l u e T u r r e t ) 1 8 0 1 8 0 1 8 0

B e l o w 2 0 0 2 0 0 2 0 0

Burneron

Lock-out



1 1 6

R O O M T H E R M O S T A T A r o o m t h e r m o s t a t m a y b e f i t t e d f o r c o n t r o l o f t h e c e n t r a l h e a t i n g

t e m p e r a t u r e . I t w i l l b e l o c a t e d i n o n e r o o m o f t h e h o m e . T h e m e t h o d o f s e t t i n g a r o o m t h e r m o s t a t v a r i e s w i t h t h e t y p e a n d m a n u f a c t u r e . R e f e r t o t h e i n s t r u c t i o n s s u p p l i e d w i t h t h e r o o m t h e r m o s t a t .

P R O G R A M M E R / C L O C K A p r o g r a m m e r o r c l o c k m a y h a v e b e e n f i t t e d t o t h e s y s t e m : t h e

m e t h o d o f s e t t i n g v a r i e s w i t h t h e t y p e a n d m a n u f a c t u r e r . R e f e r t o t h e i n s t r u c t i o n s s u p p l i e d w i t h t h e c o n t r o l .

T H E R M O S T A T I C R A D I A T O R V A L V E S I f t h e r m o s t a t i c r a d i a t o r v a l v e s a r e f i t t e d t o t h e s y s t e m t h e n t h e y

m u s t c o n f o r m t o t h e r e q u i r e m e n t s o f B S 2 7 6 7 . T h e r a d i a t o r l o c a t e d i n t h e r o o m w h e r e t h e r o o m t h e r m o s t a t i s s i t e d m u s t b e c o n t r o l l e d b y a t h e r m o s t a t i c r a d i a t o r v a l v e .

V E N T I L A T I O N O F R O O M S E A L E D F A N N E D F L U E ( R S F ) A P P L I A N C E S

T h e s e a p p l i a n c e s d o n o t r e q u i r e a i r f l o w f o r c o m b u s t i o n f r o m t h e r o o m i n w h i c h t h e y a r e i n s t a l l e d . A n y c o o l i n g v e n t i l a t i o n o p e n i n g s i n a w a l l o r d o o r m u s t n o t b e o b s t r u c t e d . D o n o t a l l o w t h e f l u e t e r m i n a l f i t t e d o n t h e o u t s i d e w a l l t o b e c o m e o b s t r u c t e d o r d a m a g e d .

N O T E : D o n o t p l a c e a n y t h i n g o n t o p o f t h e a p p l i a n c e . I f t h e a p p l i a n c e i s f i t t e d i n a c o m p a r t m e n t d o n o t u s e t h e c o m p a r t m e n t f o r s t o r a g e p u r p o s e s u n l e s s i t c o n f o r m s t o t h e r e q u i r e m e n t s o f B S 6 7 9 8 : 1 9 8 7 : S e c t i o n 6 . I t i s e s s e n t i a l t h a t t h e a i r i n g s p a c e i s s e p a r a t e d f r o m t h e b o i l e r s p a c e b y a p e r f o r a t e d n o n - c o m b u s t i b l e p a r t i t i o n a s d e s c r i b e d i n B S 6 7 9 8 : 1 9 8 7 . I f t h e c l e a r a n c e s a r e l e s s t h a n s h o w n f o r a n u n v e n t e d c o m p a r t m e n t t h e n t h e c o m p a r t m e n t m u s t b e v e n t i l a t e d i n a c c o r d a n c e w i t h B S 5 4 4 0 .

F L U E T E R M I N A L D o n o t a l l o w t h e f l u e t e r m i n a l f i t t e d o n t h e o u t s i d e w a l l t o

b e c o m e o b s t r u c t e d o r d a m a g e d .

C I R C U L A T I N G P U M P T h e h e a t i n g s y s t e m w i l l b e f i l l e d w i t h a c i r c u l a t i n g p u m p w h i c h

m a y b e f i t t e d w i t h a s p e e d a d j u s t e r . I f s o i t w i l l b e s e t b y t h e i n s t a l l e r t o s u i t t h e h e a t i n g l o a d . D o n o t a l t e r t h e s e t t i n g .

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INDICATOR LIGHTS

Boiler demand : System is calling for heat

Burner ON : Burner is firing

Lock-out : There is a fault condition

Steady light - Overheat

Flashing light - Flame failure

TO LIGHT THE APPLIANCECheck that the water valves to the central heating circuit are open.Check that the needle on the pressure gauge is not below the

required pressure - sealed system only.Switch on the mains electricity. Set the room thermostat, if

fitted, to maximum. Turn the boiler temperature control fully

clockwise to the maximum position. The burner will light. Set the boiler temperature control and the room thermostat/cylinderthermostat, if fitted, to the desired temperature.

TO STOP THE APPLIANCEFor Short Periods

Turn the boiler temperature control fully anti-clockwise to the‘O’ position.For Long Periods

Turn the boiler temperature control switch to the ‘O’ position.Switch off the mains electricity.

Any programmer will require resetting if mains supply has beendisconnected.

ELECTRICITY SUPPLY FAILURE

If the electricity supply fails the appliance will not operate.Once the supply is restored the appliance will return to normaloperation.

Check that the settings of any programmer or time controlhave been maintained.

7

FROST PRECAUTIONSIf the appliance is not to be used for a long period of time and

there is a likelihood of freezing, then the appliance should be drained.The Worcester Technical Helpline will advise you on suitable frostprecautions. The boiler has an in-built frost thermostat which willprotect the appliance should the temperature of the boiler drop belowapproximately 10°C.

SERVICE Annual servicing is important in order to ensure continuing

high efficiency and long life for your appliance. In the event of anydifficulty in making suitable servicing arrangements, Worcesterpersonnel or other competent persons will discuss regular servicing arrangements and offer a comprehensive maintenance contract.

WARNINGIf a gas leak exists, or is suspected, turn off t he gas supply to the

appliance at the service cock on the meter and consult your localservice engineer.

Do not touch any electrical switches to turn them either on or off.Open all windows and doors. Do not smoke. Extinguish all naked lights.

CLEANINGDo not use abrasive cleaners on the outer casing. Use a damp

cloth and a little detergent.

A P P L I A N C E L O C K O U T T h e a p p l i a n c e c a n b e r e s e t b y t u r n i n g t h e b o i l e r t e m p e r a t u r e

c o n t r o l f u l l y a n t i - c l o c k w i s e a n d b a c k . C h e c k t h a t t h e g a s s u p p l y h a s n o t b e e n i n t e r r u p t e d .

I f t h i s c o n d i t i o n c o n t i n u e s t o o c c u r , t h e n c a l l a s e r v i c e e n g i n e e r .

TO LIGHT AND STOP THE APPLIANCE

user manual for cbi discontinued dec 06

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